Prosonic FDU91
Ultrasonic level and flow sensor for connection to FMU9x (measuring range up to 10m)
SKU: FDU91
Highlights
- Process connection: Thread
- Temperature: -40 to +80°C (-40 to +176°F)
- Pressure: +0.7 to +4bar (+10 to +58psi)
- Maximum measuring range: Liquids 10m (33ft), solids 5m (16ft)
- Blocking distance: 0.3m (1ft)
- International explosion protection certificates
Fields of application
- Sensor for continuous, non-contact level measurement of fluids and of bulk materials in silos, on belts, stockpiles and in crushers. Also for flow measurement in open channels and at weirs. Typically used in measurements in low structural heights.
Details
The FDU91 ultrasonic level and flow sensor for continuous, non-contact and maintenance-free level measurement of fluids, pastes, sludges and powdery to coarse bulk materials. But also for flow measurement in open channels and measuring weirs. The measurement is unaffected by dielectric constant, density or humidity and also unaffected by build-up due to the self-cleaning effect of sensors. Suited for explosion hazardous areas. Maximum measuring range in liquids 10m (33ft), solids 5m (16ft).
General Information
| Measuring principle | Time-of-Flight |
|---|---|
| Sensor frequency | 43 kHz |
| Medium type | Liquids, pastes, sludges and powdery to lumpy bulk materials |
| Measurement level range | Maximum measuring range: Liquids 10m (33ft), solids 5m (16ft) |
| Blocking distance | 0.3 m (1 ft) |
| Beam angle | 9° |
| Process temperature range | -40 to 80 °C (-40 to 176 °F) |
| Process pressure range | 0.7 to 4 bar 10.15 to 58 psi |
| Sensor accuracy | ±2mm + 0.17% of measured distance |
Input/Output
| Output | 4...20 mA |
|---|---|
| Communication protocol | HART Profibus DP |
Mechanical Data
| Installation type | Vessel, Tank, Silos, Bunker, Heap |
|---|---|
| Installation position | On top |
| Process connection | G / NPT 1" (thread) |
| Wetted material | PVDF |
| Housing material | PVDF |
| Degree of protection | IP68/NEMA6P |
Electrical Data
| Power supply | 4-wire (supplied by the transmitter FMU90) |
|---|
Certification/Approvals
| Hazardous approvals | ATEX, FM, CSA, IEC Ex, INMETRO, NEPSI |
|---|---|
| Other Approvals/ Certification | CE |
Additional Information
| Ambient temperature range | -40 to 80 °C (-40 to 176 °F) |
|---|---|
| Storage temperature | -40 to 80 °C (-40 to 176 °F) |
| Shock resistance | Yes |
| Vibration resistance | Yes |
| Electromagnetic compatibility (EMC) | EN 61326 (NE21) |
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